It turns out that the brain circuit for processing fear - the amygdala - is precocious and develops way ahead of the prefrontal cortex, the seat of reasoning and executive control.

The so-called hate circuit includes structures in the cortex and the sub-cortex and represented a pattern distinct from emotions such as fear, threat and danger, Zeki said in a telephone interview.

After usage, do remember turn off the electricity, for fear it will short-circuit and start a fire. And please don't cook or use electric stove in the room.